<template>
<div class="login_container">
    <div class="login_box">
        <!-- 头像区域 -->
        <div class="avatar_box">
            <img src="../assets/logo.png" alt="">
        </div>
        <!-- 表单区域 -->
        <el-form ref="loginFormRef" class="login_form" :model="form" :rules="rules">
            <!-- 用户名 -->
            <el-form-item prop="username">
                <el-input prefix-icon="el-icon-s-custom" v-model="form.username"></el-input>
            </el-form-item>
            <!-- 密码 prefix-icon="el-icon-lock"-->
            <el-form-item  prop="password">
                <el-input v-model="form.password" type="password">
                    <i slot="prefix" class="el-input__icon el-icon-lock"></i>
                </el-input>
            </el-form-item>
            <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetLoginForm()">重置</el-button>
            </el-form-item>
        </el-form>
    </div>
</div>
</template>

<script>
export default {
  data: function () {
    return {
    // 表单绑定的数据
      form: {
        username: 'admin',
        password: '123456'
      }, // 表单验证规则
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 2, max: 10, message: '长度在 2 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid, err) => {
        if (!valid) return
        const { data } = await this.$http.post('login', this.form)
        if (data.meta.status !== 200) {
          return this.$message.error('登陆失败')
        } else {
          this.$message.success('登陆成功')
          window.sessionStorage.setItem('token', data.data.token)
          this.$router.push('/home')
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
    width: 100%;
    height: 100%;
  background-color: #2b4b6b;
}
.login_box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    transform: translate(-50%,-50%);
    .avatar_box {
        position: absolute;
        top: -65px;
        left: 50%;
        width: 130px;
        height: 130px;
        padding: 10px;
        background-color: #fff;
        border: 1px solid #eee;
        border-radius: 50%;
        box-shadow: 0 0 10px #ddd;
        transform: translateX(-65px);
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}
.btns {
    display: flex;
    justify-content: flex-end;
}
.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    box-sizing: border-box;
    padding: 0 20px;
}
</style>
